Which of the following dosage forms is a topical containing pyroxylin dissolved in alcohol and ether?
Spirit
Collodion
Liniment
Extract
Collodion
Rationale: A collodion is a topical dosage form containing pyroxylin, dissolved in alcohol and ether. A spirit is an alcoholic solution containing volatile aromatic ingredients. A liniment is a mixture of a drug with water, alcohol, soap, or oil. The term "extract" describes the process by which active ingredients are removed from their source through the application of solvents.
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The ________ block is aligned with and typed three to four lines below the complimentary closing.
Fill in the blank(s) with the appropriate word(s).
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